a chance hit; a fluke

success / success in life, achievement in the world

succeed / be successful in life

unmistakable, obvious, certain

(pure) luck, a fluke, a chance

imperfective and stem (or continuative) forms of 紛れる (magureru) [ichidan]

imperfective and stem (or continuative) forms of 紛れる (magireru) [ichidan]

an indistinct mix / a mixing up or involvement in something

a hit / a winning or correct guess / (game of Go) atari, a situation where a stone or group of stones is threatened with capture on the next move / (fishing) bite

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend