>>2290223lets" = contraction for "let us" hence it should be "let's".
"let's" is at the beginning of a sentence, so it must be capitalized.
"Lain" is a personal pronoun and also should be capitalized.
Therefore, the correct statement should be:
"Let's all love Lain!"
To which we properly reply:
"Let's not and say we did!"
(The m** can go get f***ed!)
