Japan Hiking Recommendations

Hi,

I'm planning to visit Japan again, but this time focus on scenery and hiking. I heard that kamikochi and tateyama are well recommended. However, I'm only planning to go for 7-8 days, I am also a solo female traveller and I have never done multi-day hikes (I would love to, but I will probably join group hike tours if they are any). The highest altitude was around 2500m and I don't want to exceed this.

I was just wondering if kamikochi and tateyama is safe and doable for a female traveler with no extensive hiking experience. Or are there any other recommendations?

Thanks