I wonder how miru going on the NTR path will happen will she get close to on of the different guys?
Well... we did witness a brief moment where she teases the MC about exposing herself to his Dad. Gauging if he feels envy? Or maybe an extension to MC's proposal for sleeping with other people? Given how the Dad and the Mom aren't exactly getting along, it does open up a viable branching of Miru pursuing the Daddy route, no?
I think it is a possibility that there will be a Miru Exhibitionism route as there will be sharing and NTR. Especially since the Daddy Dylan route would be less NTR and more sharing, since she is talking with Willi about it step by step. According to Ocean the NTR paths, since most of the LI´s will have one, will be real NTR, badly hurting Willi. But they will also be something you have to go for, you will not be blindsided and it will not be simple.
Same could be said about the sharing paths or "trouple" relationships, you can get them, but you will have to work for them, it won´t be coming out of the blue.
now to another Miru topic: I am looking forward to see the event when Willi finally tells Miru who his first love was (Leia) and how she will react to this revelation. In the puritan, äh, patreon version this will be an underwhelming thing, since there Leia was just Willi´s "bestest roommate". "I am your father’s brother’s nephew’s cousin’s former roommate."
In the grown-up version this is different. Leia is Willi´s twin sister and while Willi gave Miru some info and hints about his first love, the talk with Kati and his evasion during a talk about Monica makes it clear Miru does not know it is Leia. Miru might have some suspicions about it since she is vey observant, but she definitely does not know currently.