开端 Reset - Episodes 4,5,6

Episode 4

人为引爆 - (an explosion) triggered by a person

严实 - sealed, tight

惨烈 - bitter, desperate, horrible

负罪感 - guilt

趋利避害 - to seek advantages and avoid disadvantages

Episode 5

实质 - substance (eg. no substantial evidence)

排查 - check (with a list or within some limits)

头头是道 - clear and logical

支点 - supporting point

猝不及防 - no time to prepare/defend for a sudden event

挠 náo - scratch

捋 lǚ - stroke

推演 - deduction

刷夜 - spend the night outside

夜不归宿 - not going home at night

争分夺秒 - race against time 

怵 chù - fear

梳理 - comb, sort out (information)

待机状态 - standby mode

递进 - progressively

天人永隔 - separated by heaven and earth (regarding death)

Episode 6

Including this screenshot because the large wall poster of Haikyuu 排球少年 made me smile.

声张 - to make public / make a public announcement

逐一 - one by one

无穷 - infinity

抽丝剥茧 chōu sī bāo jiǎn - to spin silk from cocoons, to carry out a meticulous job
咆哮 páoxiào - to shout, roar

不服管教 - to be disobedient, undisciplined

奇装异服 - dressed fancifully, strangely

格格不入 - out of place, incompatible with

次元 - dimension (more on 一次元，二次元等等）

每一个不曾起舞的日子，都是对生命的辜负 - every day that you you did not dance, is a betrayal of life. I understand this as a quote that means something along the lines of 'live every day fully because it is precious', or 'every day that is not celebrated is wasted'. 

带节奏 - Chinese explanation here. I understand it as leading, stirring and inciting emotional responses from people, usually done anonymously and on the Internet.

执意 - to insist on, persist in