I guess it was his foster dad who got embezzlement charges and Sejin is charged by association? 
Someone help meeeee I have too many tabs open...
World hoppings - https://mangabuddy.com/manga-list/231402
Reading bl - https://mangabuddy.com/manga-list/231292
World hoppings - https://mangabuddy.com/manga-list/231402
Reading bl - https://mangabuddy.com/manga-list/231292