Recommendations

Both have 2 friends traveling abroad & the desire to skydive however only 1 pair is successful...........................................

Both feature traveling w/friends to experience new places.......................................................................................

Both have same kinda vibe & utilize red glowing eyes..............................................................................................

- both male protagonists can see spirits/ghosts and help them.

- both have a special gift.

- both have deceased dads.

- both have a rag tag group of friends.

- both are loners.

Both are dramas in which one of the FL has two very different personalities.
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Both are dramas in which one of the leads has two very different personalities.
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Both are dramas in which one of the leads has two very different personalities.
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Both are mini dramas in which one of the leads has two very different personalities.
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Both are mini dramas in which one of the leads has two very different personalities.
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Both are mini dramas in which one of the leads has two very different personalities.
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The male lead (police) in Life on Mars also gets transported back to the past (1988) to solve a serial murder case.

Emotional dramas. In both female lead travels to the past and try to prevent a tragedy from happening. In SOOD it is the death of a friend if I remember correctly, in TTEOTM it is the elimination of the realms by the hands of the devil god which she will be romantically involved with.
In both acting is amazing as well as OST , plot and chemistry.

Focusing on a male character on his journey through the world full of fights and schemes. SSS also has Xu Feng Nian who is a smartass on his own rights.

Similarities:
-Multiple sects vying for power plus the imperial court involved somehow.
-Great martial arts skills and fights.
-Smart and savvy leads, with contingency plans and payback strategies.
-Romance make small appearances.
-Plot in one way or another revolves around getting revenge and/or uncovering mysteries.
-Friendship and comedy are both important.

Nao, a high school girl living a self-proclaimed "normal" life, is one day approached by her mysterious classmate Kiri in the school library. Kiri invites Nao to come with her to visit a scene of a murder in Kiri's neighborhood which she's using as inspiration to write a novel.

Meanwhile, sisters Haru and Kei, witness their father being beaten by someone on their mountain cottage. The sister flee, only to be chased by the attacker.

Kotone works at a coffee shop run by her father after failing the entrance exam for music college. She works with her childhood friend Kazushi and the atmosphere is pleasant. Her younger sister Kanon is worried about Kotone, but spends her days devoted to her band.

A mysterious girl stands on her balcony in the rain. What is beyond the gate that looks at?

These four stories will intersect, as the boundaries between each girl gradually become borderless.