(requested)
Tsukasa comes from a family of bakers. He's the oldest son, which means his family shop will some day be his.
He's unaware of the fact that his grandfather struggled at keeping the shop going and had to ask for money from the mafia, money which he never got to repay and the huge debt fell on his parents, who are slowly trying to pay it. Less he knows he's been targeted to get killed by Rui, the mafia boss' right hand, to warm his parents and make them hurry with the payment.