主: you

谷: valley

formal version of で (de), indicating location or instrumental

王仁: Wani, a possibly legendary immigrant to Japan from the Korean peninsula kingdom of Baekje, invited during the reign of Emperor Ōjin (270-310 AD); notable for purportedly bringing the Analects of Confucius and the Thousand Character Classic to Japan (though this is controversial; see the Wikipedia article on Wani for details)

鰐: an alligator or crocodile; a shark or other large dangerous fish / ワニ: an alligator or crocodile

in order, by turns

壁蝨: a tick, a mite: any of various small parasitic arachnids of subclass Acari; (derogatory, figuratively) a parasite, a layabout, a moocher: someone who lives off of other people

even

indeed; truly; surely

truly, really