This fanfic is purely based on '18 again', the kdrama. 

Jin, who is a man in his 20's will go back at being 18 and will be given a chance to change his life. would he take the risk of changing his life or would he try to go back to his original 20's self?

Again

finally

safe

appointment

jimin

namjoon

yoongi

hoseok

159pe

jungkook

taehyung

予定

また

jin's narration: after meeting namjoon, i went to my appointment. 

the appointment was important so i've got no choice but to come.

the school will close at 6:00 pm, it's only 3:00 pm. i think i'll be able to make it.

this is the only chance that i have, so i need to go to school again.

jin's narration: after going inside the school, i went straight to the office for my appointment..