Yozakura Quartet: Hana no Uta

In a city inhabited by youkais and humans, Kotoha is an exception, becoming a half-youkai when she was struck by a mysterious lightning when she was a kid. But when she is struck once again, her powers go out of control and start threatening the city until her friends come to save her.

The Hiizumi Life Counseling Office is assisted by a pair of Ogre siblings, Kyōsuke and Tōka Kishi, who must control their massive strength to not injury those arround them. After an incident with Tōka makes her regret her condition, Kyōsuke lashes his fury at Akina, whom he believes is yet to awaken the power of "Tuning" that runs in his family and could help Tōka, until Akina prove him otherwise.

Kohime Sakurano, a cousin of Hime, intends to run for mayor in a neighboring town and the current mayor Morino comes with an underhanded scheme to prevent it.

Hime and her friends confront an elusive man to rescue Kohime but the situation becomes drastic when they fall under the influence of a barrier that weakens their youkai powers.

With Hime in no condition to fight, Akina and Kyōsuke distract the enemy while the rest of the team look for the source of the barrier to disable it.

With the barrier destroyed and Hime unlocking her true powers, the gang drives the enemy to a corner and rescue Kohime after Morino reforms. However, the man reveals himself to be Enjin Hiizumi, a foe far more dangerous than they believed.

After the last crisis is averted, peace returns to Sakurashin. However, Enjin is still on the run and plans to enact revenge on the city. Akina and Hime are summoned by the senate to discuss the situation and are angered with their purpose to sacrifice the youkai in the city to stop Enjin's plans.

Following the events of Hoshi no Umi, Zakuro attempts to adapt herself to her new life as a resident of Sakurashin. While Akina pays a visit to the memorial to his grandfather and all the youkai tuned by the Hiizumi family, he is confronted by Enjin, who attempts to possess his body, but is saved by members of the senate, but little they know that Enjin soon after learns to control the same power they used to defeat him and becomes an even more dangerous threat.

When Hime catches a cold, her friends keep her company to ensure that she will not overexert herself. Some time later, the mayor pays a visit to the local doctor, V Juri F for a checkup. As Juri reminisces about when she moved to Sakurashin, she is unaware that her younger sister is the next of Enjin's youkai hunters who are preparing to attack the city.

Believing that her sister Lila is dead, Juri tells Hime the story of their childhood together. However, when Juri reveals that she has no intention to see her sister if possible, Lila appears and attack them.

Lila restrains Juri and threatens to kill Hime, while her friends arrive to help them. Certain that Enjin is plotting something else, Akina starts looking for him while Juri and the others attempt to dissuade her sister.

While Juri reconcile with her sister, Akina confronts Enjin, and learns the true reason for his grudge on the city and gets himself in a pinch when the enemy shows a glimpse of his true powers.

Akina Hiizumi moves into Yozakura Apartments. Akina opens the door, knocking over Hime and revealing her panties. Hime punches Akina, sending him flying onto Kotoha causing him to accidentally grope her boobs and put his knee in between her legs. Kotoha tears up and a robotic Ao prepares to exterminate Akina with her finger guns. Akina screams as the building shakes. Hime tells Suzuhito that such a scenario will help to increase their audience. Kotoha and Ao loudly reject the idea.

Akina sleepily heads to school and is greeted by Kyosuke. At the entrance of the school, Touka enforces school discipline to a crowd of students. Kyosuke explains that Touka was elected chairman of the Disciplinary board in first year, exclaiming how cool and “manly” he is. Touka points her shinai towards Akina for having his shirt unbuttoned. Akina’s nonchalant response prompts Touka to lift Akina by the caller. Akina falls over Touka, unbuttoning her shirt and revealing her sarashi covering her breasts, which he gropes as he falls. Touka blushes before punching Akina away. Kyosuke worries for Akina, while runs away to catch her breath before claiming she will confess to Akina. Kotoha asks Hime what she thinks of the scenario to which she nods while eating ramen. Touka objects to the idea.

Akina wakes up in a hospital. Hime checks on Akina and explains that he was heavy to carry there. Akina comments on Hime being worried about him which she rejects. Movements are made beneath Akina’s blanket. Akina removes the blanket to find Juli whom breasts he has been groping. Akina ask why she had been sleeping there, to which she explains that she expected some girls to sleep there. Hime tells Juli to take her job more seriously and needing sleep from carrying Akina. Juli asks if that an invitation, exciting groping the air and drooling, which Hime rejects. Movements are made beneath another blanket which Hime uncovers to find Yae to her and Akina’s surprise. Yae states she is also a girl. Juli draws out the scene, which Yae approves of. Hime disapproves of the idea.

Akina returns home to find Kotoha tied up. Kotoha tells Akina she was tied up by a burglar who quickly reveals herself. Mariabell tells Akina not to worry and states she can does not leave until she is finished. Mariabell claims she will finish in half a day and attempts to capture Akina with a rope. Mariabell is somehow captured by her own rope and Akina accidentally fondles her breast. Mariabell blushes and Akina releases her and apologizes. Mariabell claims Akina is the thief, who has stole her heart. Akina is confused. Kotoha explains the scenario to Hime, Akina and Kyosuke. Yuhi and Mariabell reject.

Kyosuke and Akina play on their DS. Touka bursts in knocking Kyosuke away, and tells them they should be studying. Akina ask why Touka there, to which she explains it is her job to discipline slackers. Robo Ao enters having detected an invader. Touka and Ao fight to the point where Touka gropes Ao’s breast discovering they are real. Ao’s mask is removed revealing she is not actually a robot. Ao fires her finger guns at Touka but Akina tackles Touka out of the way. Akina ends up groping Touka’s breast and is punched away by her. Ao draws the scenario, which Touka rejects.

Akina screams and falls on Kotha. Akina gets up and explains Touka had been hitting him. Kotoha states it is fine for her to be hitting him since she is the first person she has taken care of. Akina looks away to find Mariabell also present drinking tea and again to find Juli and Yae. Akina is surprised to find them all staying there. Kotoha brings to Akina’s attention that he had been accidentally groping her breast. Akina pulls himself away to find himself accidentally fondling Hime’s breasts. Hime punches Akina away. Suzuhito draws and ask why not to include every for the end. Hime and Kotoha object. Hime and Kotoha state they need a better idea and suggest having Akina dress up as a girl.