Casual low-key homophobia huh... unfortunate dip in quality for what has otherwise been a strong manga, but here's hoping they don't keep making those jokes.
Eh, I feel you, but I don't think the romantic aspect of it has really firmly been embedded into it, so it doesn't stick out quite as much for me. Would have been better if Zen was a girl anyhow. I still enjoy the fuck out of this.