gripes first, since i'm pretty much writing them while i play:
1. "mens" doesn't exist in the english language, as far as i know. 2. i presume you're not a native speaker. the conversation flow is quite good but you tend to mess up parts of the grammar and add sentences that usually get added to theater plays or novels. a visual novel, unfortunately, is neither, since you can just show it all. best example i can give is meeting the girl next door. "hello, girl next door". "the" in this situation feels out of place. same of the answer. i could go on with quite a few sentences. 3. word of warning to those that might play this on the go as i just did: some conversations will make you nauseous if you're moving. the conversation after the funeral, where it switches scene from one sentence to another is the best example. 4. you may wanna give that fremch poem/song another crack at translating it. just saying.
that's about it for the critical side. blame my overbearing teachers that wouldn't let you graduate 8th grade (middle school) without a cambridge advanced degree. the joy of being from a (former)communist country.
now for the good/great part:
1. great chemistry between the characters. doesn't feel forced or dragged on. sure, their background stories could use a little more work (i'm a perfectionist, sue me) but for the amount of content you got so far, it's actually very good. 2. i rarely see people use the married/soulmates best friends trope and for good reason. i presume you have some real life inspiration for it!? 'cause otherwise, you're a bloody genius! 3. this is both good and not so good. while the concept of heightened speed as a superpower is great (instead of strength, or w/e), you may wanna change how it's perceived. your heart doesn't speed up but slows down from your own perspective. it's something most soldiers and athletes go through in extreme situations (fights or high stakes competitions). your heart rate only speeds up when you go for strength. also, try blurring the images a bit. it's how it actually manifests, since the human brain isn't used to perceiving over 200 fps. the execution of the power, though, is top notch. for the character to only perceive everything as slowing down and only for a little while, explains far more than maybe even you intended. same for the reaction of the MC when he realizes it. well done! well done, indeed!
sorry if some of my gripes seem a bit nonsensical. i tend to analyze everything by comparison to my own life experience and expectancies (expectations). so, yea, i can come across as rude or ill-intended. i do apologize for that.