Eddy is a single father of an 8 years old sonboy, Junior. Eddy is a single father of an 8 year old boy, Junior.

It feels redundant to say he is a father of a son.

Eddy is a single father of an 8 years old son, Junior. Eddy is a single father of an 8 year old son, Junior.

In this sentence, ”8 year old" is used as an adjectival phrase to describe Junior. That's why we don't use the plural form of "year" here.

Eddy is a single father of an 8 years old son, Junior. Eddy is a single father of an 8 year old son, Junior.

男の子は８歳だ　＝　"The boy is 8 years old" "_ is x years old" = predicative ８歳である男の子　＝ "an 8 year old boy" "x year old _" = attributive

Eddy often seeks a dates in story lessons. Eddy often seeks dates in story lessons.

He hides his leather pants and whip in his drawer, and this is why Junior thinks Eddy is a lion trainer. He hides his leather pants and whip in his drawer, and this is why Junior thinks Eddy is a lion trainer.

😮

He hides his leather pants and whip in his drawer, and so this is why Junior thinks Eddy is a lion trainer. He hides his leather pants and whip in his drawer so this is why Junior thinks Eddy is a lion trainer.

ちょっと変なストーリーですね。

He hides his leather pants and whip in his drawer, and this is whyso Junior thinks Eddy is a lion trainer. He hides leather pants and whip in his drawer, so Junior thinks Eddy is a lion trainer.

Sometimes he comes up with unrealistic ideas that make other characters frown onside eye him. Sometimes he comes up with unrealistic ideas that make other characters side eye him.

Nuance: side eye - they give him a bad look but don't say anything frown upon - disapprove of, but don't necessarily actually make a facial expression I'm not sure which one you meant so including as notes.

Sometimes he comes up with unrealistic ideas that make other characters frown onupon him. Sometimes he comes up with unrealistic ideas that make other characters frown upon him.

Sometimes he comes up with unrealistic ideas that make other characters frown upon. Sometimes he comes up with unrealistic ideas that other characters frown upon.