4화: 코사쿠는 하비리와 리에와의 복잡한 연애 관계 사이에서 복싱부에 가입한다

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Kousaku has a nightmare of himself as an ant being targeted by a "horned" Hibari. As Hibari is getting dressed, Ibari barges into her room to confiscate her female clothing. Kousaku, hearing screams, walks in to see Hibari half naked and has a heart attack of his own. Tsugumi believes Hibari being around Kousaku has made her even more feminine. Sabu, another Oozora Group henchman, tells Kousaku that Hibari may be in love with him and that Kousaku may also love Hibari, much to his dismay. Kousaku plans to become manlier to repel Hibari's "perversions" and visits the school's boxing club. He meets the club's captain, the perverted Mitsuo Kaji. Shiina, also in the club, takes the opportunity to knock Kousaku unconscious in the ring. Hibari defends Kousaku by knocking Shiina unconscious. Kousaku becomes a club member with Hibari tagging along. The club's manager, Rie Kawai, returns after being absent for a week. Kousaku falls in love with her, prompting Hibari to become jealous. Kousaku becomes accustomed to boxing and notices that, as he spars with Shiina, Rie appears to be staring lovingly at "him". Later that night, at Rie's home, she admits she cannot stop thinking about "him". The boxing club decides to hold a training camp at a nearby beach during the holidays. Kousaku is excited that Rie will be there. Kaji also announces that Hibari has joined as "co-manager", and will be attending the camp. Hibari learns from Rie that she is in love with Shiina, creating a "love square" between Kousaku, Rie, Shiina, and Hibari. (Source: Wikipedia)