Sequel
65
77
74
The manga remake of the homonym webcomic. *Note: Includes 9 extra chapters.*
Alternative
Once upon a time, a Demon King named Rchimedes caused havoc and destruction in the Human World. He was sealed away by the great hero Creasion, and peace returned to the world. 1000 years later, Rchimedes has returned, a hole has opened up in the Human World, and countless monsters have sprung up. To prevent any further destruction, the King calls upon all 75 (probable) descendants of Creasion. This story focuses on the adventures of descendant number 45, Alba, and the royal soldier appointed to assist him, Ross. *Note: Includes 1 extra chapter.*
Alternative
Satan Rchimedes returns to the earth after being sealed for one thousand years by a hero. The King tries to seal Satan once again by dispatching descendants of the hero. However, it's troublesome to find the genuine descendant, so the king chooses 75 hero-like people. This is the adventure of Alba, hero no.45, and his monitoring fighter Ross.
Parody
Senyuu comics that Haruhara Robinson uploads to his blog, which range from short omake comics to longer stories. Table of Contents Ch. 1-14: One to three page short comics, mainly drafts and/or storyboards except Ch. 10 - Parfait, which is fully inked and coloured. Ch. 15-34: SQ Senyuu! - a set of short comics set in the Senyuu SQ universe. Most are fully inked, but some are in rough draft form. Ch. 35-41: Everyone's Safe - a set of AU comics featuring Ross, Crea, and Lake, where nothing bad ever happened in Originia. Ch. 42-43: A Day Not Too Long After The End of Season 2 - What Ross and Crea got up to at the start of their journey after Season 2. Fully inked. (Source: MangaDex)