MTL - I, The System Maker! - Chapter 76

... "That's my specialty... This is called a "changeable crystal", a special crystal that can change shape according to the user's heart, Yoshino can make it into various shapes..."

"Hehe... Big brother put so much thought into it, do you have some special thoughts about Yoshino?"

Yoshina smiled and asked this question. Although it seemed a little heartless, Yoshina has not completely let go of her vigilance against Chu Chen until now, even if there is actually such a person by Chu Che ...