It's like an Atelier Sakura NTR game with 100+ forced interactions of: I love you // Yes, I too love you and we are married and happy because of our past.
Tats' dialogue and behavior is stomach-churning to trudge through. He talks at length about how much he likes everything Hana is thinking up and then strong arming him into, instead of hating it like an NTR protag. I'm guessing this awkward as hell relationship dynamic is the reason this appears on sharing recommended lists. Sure, they're sharing and doing it for each other... unless Tats mentions the name of the one girl he has ever had a crush on and kissed in the past, then he has to shut up. Or tries to see the sharing scenes in person, then he has to leave. Or wants to be on the phone during the sharing, then she hangs up. Or if he and his wife are alone, then she's tired (and will sneak out to fuck someone else once he's asleep). Or... you get it.
This one is NTRS in the same way that concentrated flavored sugar is orange "juice." I don't consider this a sharing game that will make the traditional sharing story crowd happy. It's an NTR game written from the perspective of a protagonist that loves being NTR'ed. Hana could literally do anything she wants and Tats will love it (and they both do), if you consider that a fun sharing story then you'll have a blast.
For my tastes, Hana is insufferable. She spends 85% of her time fucking/dating someone other than her husband (or angling to do that) and the remaining 15% telling her husband why he can't fuck her or gaslighting him to feel OK about some sheisty shit she did "for him." He sees like 10% of what happens and only hears about 33% of it because she never wants to include him, preferring to act solo to keep Yuma "comfortable." If there was any respect or sexual chemistry between the couple, or the love was less forced/artificial, it might have grown into a light and fun sharing story. As of the latest release, it's NTR from the perspective of a spineless, boring, masochist dupe with a wife who always puts her needs first.
The art is really good though.