We pick up right where we left off, with Seiya categorically rejecting Mash and Ururu. He could be a little nicer about it, but the truth is he is far beyond them in power and they would slow him down. But for some reason, when Rista gains wings and tries to catch up to him, he takes his foot off the gas and comes back for her.
Sure, he then accelerates so fast her boobs pop out, but it seems he had a change of heart about having her around just minutes after saying he “so didn’t need her” any more than the Dragonkin. Did he simply appreciate the effort she made to chase after him? Or just remember that she as a goddess can still do things he can’t, like open portals?
In any case, Seiya arrives at the site of the advancing undead army and uses not one but two Meteor Strikes to eliminate them all at once. When he appears fatigued, Rista lets him lean on her, but she’s annnoyed when he states he’s actually very far from having used up all his MP.
With Seimul safe, Seiya holes himself up in room at the inn, mastering synthesis, in particular making use of Rista’s stray goddess hairs to synthesize a powerful sword, but wanting her to provide one thousand more hairs to make more; Rista for her part is not prepared to go bald!
Then they get a delivery: a looking glass through which the Heavenly King Deathmagla presents a captured and tortured Mash. When Mash is defiant rather than begging for his life, Seiya decides to rescue him and defeat Deathmagla in one trip.
After using his goddess hair-infused sword to slice off Deathmagla’s hand through dimensional planes, he quickly withdraws to the Divine realm where the ten or so seconds before Mash is killed is stretched out to fifteen or so minutes, using that time to brusquely ask an amused Ishtar to open a portal to Mash’s location.
Once there, Deathmagla claims to have prepared for every contingency in creating an invincible boss in Dark Firus. But detail-oriented as he is, Deathmagla can’t hold a candle to Seiya’s preparation, as the hero uses previously-unseen high-level blunt abilities and an ice-element bracelet (again, synthesized with Rista’s hair, making her wonder if she has a hair loss problem).
Whether it’s turning back for Rista in the air or choosing to rescue Mash so he can carry his equipment, Seiya seems most motivated by those who demonstrate maximum effort, as he does. With only two Heavenly Kings and the Demon Lord remaining and Seiya’s continued exponential growth, Rista seems poised to save her first world…barring something unexpected.