ARCHER reincarnates as a NEET in a parallel universe..............what could go wrong?

After the events in Unlimited blade works, Archer dissapears and heads for his final resting place but instead ends up in the body of a fat otaku who nearly dies due to choking of water..........parallel universe? No problem,spirits? curses? masters of mystic arts? wth even heroic spirits taking over others? no problem I'm a counter guardian.