making someone even stronger

ghost / evil spirit, demon, ogre / (figuratively) someone of remarkable or diabolical energy or ability, a demon / "it" in a game of tag/hide and seek (鬼ごっこ onigokko, "pretend spirits")

excellent, outstanding, superior

be good at (a thing); be superior to (a person)

(chiefly literary) truly; indeed; without doubt

a surname

a metal rod or bo staff / (abbreviation of 金棒引き) a night watchman / (abbreviation of 金棒引き) telling tall tales or gossip; one who does such things

to study / to learn

new, novel / latest, recent / modern / fresh

(archaic) new, novel / (archaic) latest, recent / (archaic) modern / (archaic) fresh