Bride-to-be Celina Frenn may have received coolest engagement gift of all -- this amazing Lego love story video her freelance animator fiance, Kevin Ulrich, made for her.

Courtesy of Kevin Ulrich

The video details just about all of the important milestones in their relationship so far -- how they met at work, how Ulrich asked Frenn if she'd like to date him and of course, how Ulrich popped the question on October 14, 2015.

Courtesy of Kevin Ulrich

Frenn and Ulrich work in the same office building, as a writer/editor and freelance animator, respectively, so Ulrich wasn't able to keep the video a secret.

"At first she would come into my office and say, 'Why are you doing that scene? Wouldn't this other one be better?'" Ulrich told The Huffington Post. "I had to tell her to trust me, and that she would like the final product. When I finally showed it to her, she cuddled up to me and teared up, saying, 'I really, really like it.'"

Courtesy of Kevin Ulrich

Ulrich has been making Lego videos on his own for years and has a YouTube channel featuring his fun creations. He even did work for The Lego Group's Hobbit toys in 2013. It took him 70 hours over the course of a week to complete Frenn's video.

The pair are getting married on April 17 will show the Lego video at their reception.

"Obviously a 73-second video can't really sum up a two-year relationship," Ulrich said. "But both myself and our friends and family feel it does a great job at painting a charming cute little picture of what our love story looks and feels like."

H/T BuzzFeed