Official translated and released by futekiya: https://read.futekiya.com/comic/5fc99fa327153

Country boy Haiga has many questions he wants to learn the answers to when he moves to the bustling capital for his university life – and one of them happens to be, “do I like guys, too?” When his upperclassmen dare him to check out a box spa behind Shinjuku’s Nichoume District, Haiga uses this opportunity to find out the answer to his question – and runs into his senior Kanae, who has one simple solution for him – clothes, off!