Lemme put out my prediction here the sis is dating a lower ranking staff(?) From the same yakuza gang as the bottom but wanted to surpass the bottom in term of finance to prove himself to be more useful to their leader thats why the sis got force to purchase the drug.the bottom probably being the sis friend from highschool told the sis to break up but no she still love him. Then she got blackmail by her bf that he gonna tell people around her that she purchased drug which drive her to suicide. The bottom feel responsible because he knew what is happening but fail to stop her , ٩(๑❛ᴗ❛๑)۶
Lemme put out my prediction here the sis is dating a lower ranking staff(?) From the same yakuza gang as the bottom but wanted to surpass the bottom in term of finance to prove himself to be more useful to their leader thats why the sis got force to purchase the drug.the bottom probably being the sis friend from highschool told the sis to break up but no she still love him. Then she got blackmail by her bf that he gonna tell people around her that she purchased drug which drive her to suicide. The bottom feel responsible because he knew what is happening but fail to stop her , ٩(๑❛ᴗ❛๑)۶