I like the idea! But it's somewhat wasted since the narrator mostly only ever narrates the MC's feelings, thoughts and actions, so as it stands it's not all that different from a normal VN where you play them. Options should have been "The MC's phone starts ringing"/"[Something else happens]" instead of "MC picks up the call"/"MC doesn't pick up the call" (in my opinion, of course).
Other than that, the visual style is distinct (good use of colors) and the writing is very solid. I like how we don't only trace the character's actions from now on, but also what lead them to their initial situation.