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after reading many heartwarming things that jaehyun hyung did to haechan, i'll try to make their moments into thread. their relationship is so beautiful. jaehyun hyung always taking care of baby haechan so well and haechan knows he can rely on jaehyun hyung 
thread
thread
haechan's drink was americano, he asking jaehyun to trade his drink with jaehyun's ice choco. jaehyun immediately gave his ice choco to haechan (2017)
i think jaehyun's piggyback is haechan's the most favorite thing that he did to his jaehyun hyung (2017)
see? haechan really loves to get piggyback ride by jaehyun hyung (2019)
jaehyun being kissed by haechan (2018)
haechan sitting on jaehyun's lap and he felt that jaehyun's lap is soft and warm (2018)
haechan encouraging jaehyun to dance along with him. being dork together ft johnny (2019)
haechan seemed hyping jaehyun up from behind when jaehyun dancing to red velvet's “ice cream cake” - ft taeil and doyoung (2017)
haechan on jaehyun : “my roommate hyung. he's like my real brother. it feels nice when he hugs me”
— NCT 2018 Profile : Haechan —
— NCT 2018 Profile : Haechan —
jaehyun pulling baby haechan closer to him (2018)
haechan sleeps in jaehyun's bed when he's not there
180402 NCT127 'CHAIN' Showcase in Japan — (© nct_127)
180402 NCT127 'CHAIN' Showcase in Japan — (© nct_127)
our vocals jaehyun and haechan singing while clinging on each other in “touch” (2018)
jaehyun choosing haechan's poster when he bought “superhuman” album at hottracks (2019)
they are seriously cute together
jaehyun and haechan slapping each other's butt while practicing the choreography (2019)
haechan slapping jaehyun's butt and jaehyun pretended he didnt know anything
haechan is such a tease... https://twitter.com/jhyunactivities/status/1200961708283416577?s=19
eventhough they werent roommates anymore, haechan always remember that his jaehyun hyung likes to play game. he called jaehyun to join him playing overwatch together AND we know they call each other “baby” https://twitter.com/jaehyunspics/status/1196418829498408960?s=19
haechan is always clingy to his jaehyun hyung (2019)
the way haechan getting jaehyun hyung's attention
