In the bedroom.
Su Lu lay on the bed feigning sleep, his focus on his attribute bar:
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Name: [Su Lu Pottery]
Profession: [Mystical Scholar] (Rank Two)
Professional Rank: [2]
Title: [None]
Strength: [1.6], Agility: [1.3], Constitution: [2.2], Spirit: [4.0]
Inspiration: [4.0]
Skills: [Creation of Dead Princess LV1], [Maga Fighting Skills LV5], [Soul Trance LV3], [Spirit Oppression LV2], [Spirit Thorn LV3], [Magical Item Production LV1]
Passive: [Common Hebrew LV3], [Basic Physics LV5], [Demon Hunting Knowledge LV4], [Ancient Hebrew LV2], [Gulam Language LV1], [Mysterious Knowledge LV1]
XP:[320]
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"Everything else remains the same, yet my fundamental knowledge of physics has suspiciously increased by one level. Is it due to my recent progress in particular?"
In reality, passives and skills can be improved through active learning. Experience points merely speed up the process.