Contact

Everything goes to djhousetw@gmail.com, and Hao's Dad reads and answers every email himself.

App support

Tell me which app, your device model and OS version, and what happened. A screenshot helps a lot.

Found a mistake or something outdated in a guide, or want a topic covered? Let me know and I'll update the article after checking.

Which Three Kingdoms hero or story should come next, or what did your kid ask after listening? I'd love to hear it.

For parenting or education collaborations and media requests, please briefly describe the idea and timeline.

It's a one-person operation, so replies usually take a few working days.