(Buddhism) dead memorial service where many gather to transcribe a sutra in one day

once in a lifetime

(slang) wearing only underpants

single room

Alternative form of 胸が一杯になる

to have a lump in one's throat, stomach full of food / (idiomatic) to be overwhelmed with emotions

(idiomatic) unhesitatingly without dispute

(Japanese mythology) son of 瓊瓊杵 (Ninigi) and 木花開耶姫 (Ko no Hana no Sakuyabime), younger brother of 火照 (Hoderi), husband of 豊玉姫 (Toyotamabime), father of 鸕鷀草葺不合 (Ugaya Fukiaezu) and grandfather of Emperor Jinmu; he was known to have a conflict with his brother in the myth 海幸山幸 (Umisachi Yamasachi, “Luck of the Sea and Luck of the Mountain”)

one for all, all for one

(literally) plan your day during the morning, plan your year during New Year's / early planning is the key to success