Is 130k yen per month enough in Tokyo?

Context: Our employer is a JP-PH company that offers IT services to JP companies. My prior projects ay hindi required onsite so I am working and receiving my salary dito sa ph.

Now, I will be assigned sa project na very strict and need onsite mag work for 1 year lang naman. Bali continue lang ang sahod ko dito sa ph which is 26k while the 130k yen is just our monthly allowance in Tokyo. House rent and other utilities are shouldered by our employer so the allowance is mainly for the food and transpo na lang.

My concerns are I think maliit allowance plus matatali ulit ako sa employer namin for another year pag uwi sa PH as a bond. Plan ko na din kasi magresign dahil maliit salary samin. We can decline onsite-based project but I am not sure if I can still cancel it dahil malapit na deployment date. Nevertheless, I still need your input if it is worth to take.

Ps. dream ko talaga makapunta ng JP and improve my conversation skills (N4 level btw). Edit: adding another concern: mamimiss ko bf ko 🥲