That chapter 2 credit page. This is pretty good though. I was a bit confused when she said "the boy or girl part of me", does that mean she's nonbinary? I hope that's the right term.
Also read the last chapter, pretty disappointed, it kinda feels like Tsukasa is unhappy. I just wish the author didn't put that epilogue scene where Tsukasa's boyfriend was mentioned in chapter 19, so I can keep hoping for Tsukasa x Washio. This manga could have been good.