[WIP] Update lineart page 38, sketch page 39-40 (Patreon)

(please be cautious this is very explicit so open it when you're not in public area!)

Tighnari loves to tease Lumine a lot~ he's such a gentleman in this pages (but only for temporary... right?) 

I'm going to color page 38-39, please be waiting and thank youu so much for supporting me! ❤❤