Delightful! I was pleasantly surprised by how fun of an experience this was. The game gave me a few chuckles but it was competently written all around: the action, the tasteful exposition, the setups and payoffs... Also, one of the best sound designs out of the whole jam, the music rocked and the stomping sounds pulled me in and were perfectly mixed with the music.
The one thing I wasn't crazy about were the CGs with the kaiju monster itself. I guess the design of the monster fits the tone of the story and the art style is coherent with the sprites, so I shouldn't complain... But when the writing and the audio introduce the monster entering the scene I was genuinely grasped by the story. So when the screen goes from black to the cartoony monster design, I can't help but feel a bit deflated and pulled out of the story. I think less is more applies to this VN.
My other minor criticism concerns the romance, which feels a bit unrealistic and too fast paced. This can be excused as it is sort of expected in this kind of genre. Plus, the payoff with the bonus scene was amazing.