Hey guys, I'm translating the Chinese version of this manga and I see you guys are confused about the last sentence. あびせる could definitely mean taking a bath, but in this case, I think it is better to understand as "be bathed with sth". You can あびせる by anything: questions, swords, gunfire... and in the story, the guy was getting excited about being "bathed" by those samurai ghosts🤣 Hope this can help, enjoy!