AN: Even though I’m making good on my words, why do I feel like I’m betraying the expectation……
There were two silhouettes dashing to the western ocean.
Both had strange appearance. Rather they were a bizarre phenomenon.
One was a rabbit running on the sea. More accurately, the rabbit was using dark red ripple spreading midair forming an energy platform as its foothold but because the rabbit was extremely near the sea surface and it was moving with abnormal speed, its dash caused sea spray to rise in its wake as though the sea got split.
But, Inaba whose rabbit ears were going *fuasah fuasah* from the sea breeze was a monster that possessed that kind of characteristic magic, so putting aside the reason of why he was at sea, there was no doubt that this was still within range that could be comprehended.
The problem, was about his companion.
『……Boss. Isn’t that foul play?』
『Shut up. It’s convenient so it’s fine.』
Inaba glanced aside at his companion――the human faced fish Leeman. His straight-man soul that was welling up the moment Leeman took that out was finally breaking through and leaked out.
*KIIIIIIIII-* Such unique sound was resounding. Even though Inaba was holding back, but it still granted Leeman the speed to follow Inaba’s speed.
The thing’s appearance was closely resembling a delta shaped fighter jet. Its terrifyingly smooth body that was colored with sea camouflage brought the sea resistance to nearly zero. The ripple that was flowing backward was beautiful. The picture of a shark exposing its fangs painted on its prow showed the playfulness of the creator.
There was a spot that seemed to be the cockpit near the center of the ship frame. The inside of that cockpit was filled with water where Leeman was snugly settled there. A part that seemed like the propulsion device was installed at the stern, for a glance it could be seen like the propulsion method of water jet, but what was jetting out from there wasn’t water but silver particle. Without a doubt it wasn’t normal from that point.
――Small submarine with dual use for water and sky   Triana (v.2)
It was the strongest and fastest artifact for open sea that the demon king gifted for his lifesaver (?).
『You are already a sea monster through and through boss. You are flying. You are sparkling. A flying human faced fish, that’s just too surreal ya.』
『I told you, shut up. This is more or less a submarine. It can also fly. I am a man of sea.』
Perhaps feeling somewhat awkward, inside the cockpit that was filled with water Leeman-san averted his gaze toward faraway.
By the way, this Leeman’s exclusive submarine (?) was linked with Leeman’s telepathy, from its activation until its steering could be performed with only Leeman’s thought. In addition, a part of Leeman’s scales was transformed into living mineral using metamorphosis magic and regeneration magic, those scales themselves were artifact that possessed the function of “Treasure Warehouse”.
『I never thought that boss’s own body would also get demonically remodeled……Ou-sama, how terrifying.』
『I already told him that I don’t need it. But Ha-bou said『Lee-san is the type to get dragged into something troublesome, so just think of this as something for reducing my worry and accept it』 and requested on me. Even though it was me who was in the receiving side. Good grief, our position is all messed up. If Ha-bou requested me that far, uncle just cannot refuse it.』
‘What else is there other than gratitude that I can show to him huh?’, Leeman shrugged his fins with that thinking looking somewhat troubled.
Inaba shrugged his rabbit ears「Indeed」 in agreement. The ear cuffs that were attached on that fluttering rabbit ears were also not something that Inaba asked for, all of them were Hajime’s thoughtfulness for Inaba who was continuing his warrior journey to become strong.
The demon king-sama was comparatively harsh to human, but it seemed he was really kind to his monster comrades.
『By the way, what’s that sparkling things? That ain’t magic power right? Made in earth thing? Somehow I felt absurdly strong power from it though……』
『Nn? Aa, this thing. I also don’t really get it. A few years ago you see, that chap Ha-bou got lost in different world that isn’t this world or earth. It seemed to be a world of sky and dragon, and this energy seems to come from there. He improved it a lot, and then he said that for this kind of vehicle this thing’s convenience is better than gravity control and improved it only recently.』
『Hohee~, a world of sky and dragon huh……as expected from Ou-sama. He will go anywhere yeah. As I thought being at Ou-sama’s side will be the most interesting huuh.』
Inaba-san and Leeman-san didn’t know. How the energy of that world was fundamentally limited. How Triana’s energy strangely wasn’t running out at all despite of that. How the cause of that was the 'small planet” loaded inside the ship……
After several years of research, that demon king finally completely grasped one of mankind’s great problems and made it possible to miniaturize and mass produce it!
By the way, the former battleship that was similarly demonically remodeled like Triana had been reborn as an extravagant passenger ship that could fly anywhere whether to the space or the dimension sea, and it had also been unveiled already in front of a certain queen and her group.
At that occasion, the grown up queen-sama was overcame with emotion from her reunion with the demon king-sama and did this and that, then there was a dispute with the introduced wive~s but……
With the mediation of the workaholic princess-sama who for some reason seemed to be excessively getting along with the queen-sama, they all managed to avoid further problems.
And then the former classmates who were also boarding the ship and came along together said 「He didn’t stop with just having mistress, now he even have local wife!?」「How far the demon king is planning to go……」 with a shudder when they witnessed that.
Now then, Inaba and Leeman were absorbed in their carefree talk while there was something strange happening in the ocean, but the next moment, they withdrew from that place at the same time.
Inaba was making water pillar from the impact of his step. While Leeman took a sharp turn.
――OOOOOOOOOOOO-
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The place where Inaba and Leeman were at a moment ago was assaulted from inside the sea by a giant sea snake with its mouth greatly opened just like the sandworm before this.
The jaw closed with a snap in vain without catching any prey. The leaping out giant sea snake monster turned its fierce gaze toward the pre――
『CHESTOOO――!!』
『We got an energetic guy here. Here』
What came flying was a white cannon ball. Inaba’s flying kick that accelerated with a sound as though the air was bursting the flank of the sea snake until halfway, snapping that huge body into ‘