Random thought, Hatsukoi Master Up has been released, which has characters drawn by Saimon. His characters actually include their three sizes... so one can now compare and estimate the cup sizes of Rei and his other Toriko characters.
https://azarashi-soft.nexton-net.jp/koimasu/#story

Also anyone used this?
https://github.com/neavo/LinguaGacha/blob/main/README_EN.md

Spotted this from Hatsukoi Master Up VNDB MTL and seem useful for anon doing the MTL for guilty games.