One would think that being in megacities is good for being a solo travel even if for a short while. I travel solo often (and occasionally with family and have very rare instance of being with friends). Eating out is generally a dilemma for a solo traveller where I usually tend to avoid evening crowds. Same with doing tours even if you are with people you generally just be on 'your own'.
Maybe you can check out Japanese baths / Japanese spas?
The tempura looks delicious though!
#japan #travel