第4話: 宇宙人・Hitoshi Soraが人間を研究するため生物教師になり、三角関係が発生する

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Hitoshi Sora, the alien who brought Hazumu back to life, begins to work at Hazumu's school as a biology teacher to observe human beings. Later, Hazumu goes out shopping with Yasuna and they end up going to a karaoke bar. Conflict begins to arise in the form a love triangle between Hazumu, Yasuna and Tomari after Tomari sees Yasuna try to kiss Hazumu at school one day. (Source: Wikipedia)