Korean Webtoon,[Somehow, my soulmate], episode 21 summary and free Korean vocabulary

Original source [21]

Ji Ah is already regretting asking Cheol to train her.
He took her to a gym where he made her do some planks.
While working out, a lady approaches Cheol.
“This is my first time joining a gym, so I do not know much.. If you don’t mind, could you show me how to use the equipment?” the lady asked, while Ji Ah was standing right there.
Cheol agreed to help.
Ji Ah was dumbfounded.
He kept giving the lady instructions so naively, while Ji Ah was fuming in the background.
“Can you show me how to squat as well?” she asked him again.
Cheol agreed again and started to squat.
Suddenly, the lady tripped while squating.
This was obviously intentional.

지구 : Earth, district, zone
비키다 : step aside, step back,turn aside,excuse oneself, leave someone alone
소행성 : asteroid, minor planet
충돌하다 : collide, clash
인류의 :human,man´s
뜬금없다 : abrupt , out of nowhere , random
업보 : karma
필수 : essentials, requirements, necessities, a must
숫자를 세다 : count the number
똑바로 : straight, upright, truthfully, honestly
독한 : poisonous, potent, strong, spiteful, venomous
이쯤되면 : at this point
감이 오다 : to get it, to understand it, to have a clue, to fully grasp something, to get a hang of it
보람이 있다 : be worthwhile (to do)
빡세게 : intensely , hard
체중계 : bathroom scale
효과적 :effective, effectual
조지다 : screw up, gobble up
자세를 똑바로 잡다 : straighten oneself
단위 : unit
세다 : strong, powerful
시점 : point in time , starting point
운동 기구 : sporting[sport, athletic] goods[equipment, apparatus], sport outfits
다루다 :use, play
기본 : basics, prerequisite, essential
원리 : principle, fundamental
정자세 :correct pose
관절 : joint
최대한 :maximum, utmost limit
무리가 없다 : there is no issue
의식하다 : be conscious of, tend to
살짝 : stealthily, secretly, furtively
유지하다 :keep, maintain
싸가지 없는 : rude little
주저앉다 : sink to one’s knees
허벅지 : thigh
지면 : paper
수평이 된다: to adjust, to balance , to level off
넘어지다 : fall down, trip over, tumble over