Without the mother, the author doesn't need submit their story at all.
If the mother in the story, blame MC and she apologised afterward, then the author probably make it as one shot story.
The mother that triggered MC's gloomy personality and the main core that dragging the storyline longer.
And the latest chapter is a signal of epilogue in the story.











Even I believe their pranks and even question the setting, whether guideverse can get male pregnant or nah. ヽ(`Д´)ノ