Kare wa Kanojo ni Kawaru no de

彼は彼女に変わるので

Male high school student Shikayama always keeps his distance from his classmates. He has neither friends nor a lover, but always makes sure to get home before sunset. Because... during the day he is a male and during the night he is a female. Who will this high school student living double lives fall in love with? (Source: Shogakukan, translated)