(informal, chiefly men's speech) second-person personal pronoun: you (romantic)

a book / a script; a scenario / source; origin; root

et cetera

珪藻: diatom

実相: reality, the real state of affairs / 実装: an actual installation

実装: to actually install something

着想: idea, conception / 着装: putting on, fixing

the whatevers, the whys and wherefores; however [it may be]

what kind of

in what manner, how / what about... (used to make a suggestion)