“Spiritpact has ugly backgrounds, unappealing color work, and extremely generic, under-designed characters.” Anime News Network

“I love Spiritpact, and it's a really wholesome anime... Keika is a spirit that has come to love Tanmoku Ki solely for who he is.” Facebook · Phuong-Vi Phan · 2 years ago The "Technical Struggle" Perspective

Spiritpact (also known as Ling Qi ) is a divisive series that often splits audiences between those who love its emotional core and those who can't get past its technical flaws. Originally a Chinese web manhua, it follows You Keika, a poor fortune teller who dies and becomes the "Spirit Shadow" to a powerful exorcist, Tanmoku Ki. Community Reviews

Opinions on the anime adaptation are quite polarized. While some viewers find the character growth and central bond deeply moving, others criticize the production quality. The "Rough but Rewarding" Perspective

“It never screamed quality to me... from shoddy animation to oddly placed humor and hefty amounts of inelegant info dumping.” WordPress.com · 9 years ago Key Takeaways for New Viewers Spiritpact episode 2 - Weekend Otaku

Many fans argue that if you can push past the first few episodes, the story becomes much more engaging as the mystery of Ki's past unfolds.