this maybe? - http://www.mangago.zone/read-manga/henyoku_no_labyrinth/
OMG, I don't know if it's the manga EATSHIT was talking about, but in my case I love you so much, I've been searching this manga for years ;__;
hahaha no problem!! glad i (unexpectedly) helped ~ ヾ(☆▽☆)
thank you so much...
this is what i've looking for the longest time...hehehehe
you’re welcome!! i’m glad it was the right one! ヾ(❀╹◡╹)ﾉ~
i would like to ask if anyone knows about this manga i used to read but i forgot the title,the plot was the FL used keys to go back in the past to rewrite the future...because she commited suicide in the future,his friends and his future bf go back in time using the keys...thanks guys