@koikun boring; I want an ending where Minori and Tubasa realize their love for one another, but keep Youtarou around as a sex pet, but given that Youtarou is a potent sexual partner whose deeds between the sheets are worthy of song, they end up having sex with Youtarou far more than with each other, simply because of how good it is.
Youtarou is an animal, with a 25 cm penis, who can continue going after 9 consecutive loads. He cums buckets onto both of their faces, and they both love it. Youtarou is more than satisfied with this arrangement of merely being a sex pet, that these damned rich people are finally off his back and he can go back to his true
fortes in life: cleaning and cumming buckets.