Reminds me of Sora o Daite Oyasumi (its highly recommended but its dropped by the author sadly, but its still a must read!!) well this one is not a heavy tearjerker one unlike sora, pretty plain, their relationship is the only one cleared (still missing smthn tho), like did he tell him his twin the reason why he's selling himself and such, and the 28 yrs old guy i thought he has some ulterior and just a predator, still doubt him.
Hitotsu Shikanai Mono