(figuratively) cheap; of little worth

Mount Tsurugi in Tokushima prefecture

(linguistics, uncommon) trigrade conjugation / (informal) 3-step process

participate in / take part in / join / attend

In the traditional Japanese number system, 10⁶⁰ or one novemdecillion of the American system. / (Buddhism, historical) extremely large number, usually interpreted as the number 10²⁸

someone else's younger sister

富士山: Mount Fuji / (name ふじ + suffix さん) Mr/Ms Fuji

aunt / middle-aged lady

算入: factoring in, including / 参入: coming; visiting

算入: factor in, include / 参入: to come; to go; to visit