Description for "be in the same boat in Kanji"
In Buddhism, after death, he was born on the same lotus flower in Sukhavati Jodo. In turn, to act and fate together until the end, regardless of the good or bad of things and the good or bad of the result.
In Japanese literature, it was used to fulfill love in the afterlife, especially in the Edo period. It is also used to jointly share the fate of things.
Japanese said “Ichi ren taku sho”.