Maybe come up with a plan to involve him more in the story, show him how his presence can make a difference. Also, give him reasons why it's important for him to be on your side.
Well, one way could be to show him more understanding and support. Maybe find common interests or hobbies to do together and build a stronger connection. Also, try to avoid unnecessary arguments and be more compromising.
Well, one way could be to understand his perspective first. Then, find common interests or goals to work towards together. And don't forget to give him space when he needs it.
Well, you could try doing things he likes together to strengthen the bond. Also, showing appreciation and support for him can go a long way. Sometimes, small gestures of love and care can make a big difference.
One way could be to have heart-to-heart conversations regularly, listen to his perspective, and work on resolving any conflicts together. Surprising him with small gestures of love and support might also make a difference.
You might consider giving him some space to explore the manga on his own and then discussing it together. Sharing your enthusiasm and showing how it brings you joy could potentially get him on your side.