From MC's perspective:
Inside the Gregor Mansion, looking at the hundred-heart fruit. I decided to consume it right now. I took a bite and tasted it. I felt warm energy and a unique taste.
Then I consumed the rest of the fruits in a few bites. I closed my eyes and waited to see the effect. The pure energy from the fruits is being absorbed by every part of my body.
Some of the energies entered the mana core space and then were absorbed by the gravity mana core. Slowly, the effect of a hundred-heart fruit takes place.
It's improving the sensory part of the body. I felt a new door being opened in my mind. I realized the senses in my head were improving.
Time passed in the blink of an eye,
I was immersed in a feeling so much that I forgot about the time. When I opened my eyes. I noticed the time, it was a few hours later already.