▁in ▁Life ▁note , ▁part ▁of ▁a ▁series ▁of ▁fict ional ▁notes ▁per tain ing ▁to ▁the ▁concept ▁of ▁B TS ' ▁albums , ▁starting ▁with ▁their ▁ 2 0 1 5 ▁EP ▁The ▁Most ▁Beautiful ▁M oment ▁in ▁Life , ▁Part ▁ 1 . ▁The ▁note , ▁written ▁by ▁B TS ▁member ▁Jin , ▁spoke ▁about ▁him ▁finding ▁a ▁not ebook ▁written ▁by ▁his ▁father ▁in ▁the ▁story . ▁The ▁book ▁discussed ▁the ▁father ' s ▁fail ures . ▁Three ▁days ▁later , ▁on ▁August ▁ 9 , ▁the ▁tra iler ▁for ▁the ▁album , ▁featuring ▁a ▁new ▁song ▁entitled ▁" E pi ph any ", ▁was ▁released . ▁The ▁solo , ▁described ▁by ▁Billboard ' s ▁T amar ▁H erman ▁as ▁a ▁" building ▁pop - rock ▁mel ody ", ▁was ▁performed ▁by ▁Jin , ▁and ▁speak s ▁about ▁finding ▁self - lo ve . ▁The ▁song ▁serves ▁as ▁one ▁of ▁the ▁tracks ▁for ▁the ▁album . ▁The ▁tra iler ▁was ▁directed ▁by ▁Y ong - se ok ▁Ch oi ▁( L ump ens ), ▁and ▁port ray s ▁multiple ▁versions ▁of ▁Jin ▁in ▁a ▁room , ▁telling ▁the ▁story ▁of ▁a ▁personal ▁journey . ▁Philip ▁M err ill ▁of ▁the ▁Rec ording ▁Academy ▁described ▁the ▁video ▁as ▁having ▁a ▁" s ense ▁of ▁going ▁back ward ▁and ▁forward , ▁through ▁time ▁and ▁through ▁different ▁versions ▁of ▁one ' s ▁self ". ▁Disc uss ing ▁Jin ' s ▁performance ▁of ▁the ▁video , ▁Hong ▁H ye - min ▁of ▁The ▁Korea