Boku no Kanojo wa Dekkawaii (Pre-Serialization)

Drawn by the talented artist sanorin-sensei, a big heroine arrives! She's big when it comes to height, capabilities, and love, too! The ideal lover comes bursting onto the scene! Compiled in Volume 1 of (https://mangadex.org/title/b5351a0c-96af-49f7-898e-17914a082561) as Chapter #00.