[Manami does indeed have a keen eye, and still Ven's combo attack takes him by surprise. He's not able to get completely out of the way in time, and all four of his illusions are hit while he just barely evades the worst of the blast.

Rolling away, his spear knocked from his hand, Manami comes to a stop and lays still with his face down for a long moment, just catching his breath. He feels light-headed from having used so much of his magic up, and his ears are ringing from the Crescent Moon.
Then, he starts laughing lightly into the grass between deep breaths.]

Haa- hahaha- haah. That's it for me, I think! You're really good, Ven-kun! I should call you 'senpai'! Ahh, I didn't even get to show you my wind-assisted Jump! I'll do it- just give me a sec~