[DeepL Translation - needs review] Volume 1 Introduction: One night, Mio, who is in debt to her parents, is reunited with her first love, KUJO Yamato. Yamato's kindness rekindles the sweet feelings she once had for him, but he turns out to be a young yakuza boss! What's more, he asks her to marry him in exchange for covering his debts...? The popular serialization of "Sister Friend," which has been an unprecedented hit at e-bookstores, is now available in a long-awaited new book edition! A h...
