Honestly, I'm confused in this first chapter. This is a sequel. Hina and Chi are still a pretty new couple. Hina is feeling serious about their relationship, for the first time in his life feeling seriously in love, and is experiencing jealousy over anyone who takes up space in Chi's life. Chi is wondering if he's doing the right thing by dating Hina, who used to be straight. I'm confused by Chi's relationship with his friend, Shige. It's not really clear if Shige only thinks of him as a friend. Also, it's mentioned that Chi is still recovering from a really bad relationship in his past.
Usotsukiyachi no Nagai Yoru