Complex sentence: A character that only appears in the manga, he is Niki's bodygaurd and childhood friend, although he appears to be morbidly obese, he is very strong and attacks anyone who bullies Niki.
Split into simpler sentences: A character that only appears in the manga, he is Niki's bodygaurd and childhood friend. Although he appears to be morbidly obese, he is very strong and attacks anyone who bullies Niki.