Lucca Ashtear (Japanese: ルッカ・アシュティア, Hepburn: Rukka Ashutia) is a character in the Chrono series of video games designed by Akira Toriyama.

[3] Chrono Trigger story planner and script writer Masato Katō noted that Lucca was the character in the game that he felt most emotionally attached to, due to her kindness, dignity, and occasional obliviousness.

[4] One significant scene relating to Lucca has her going back in time to save her mother from having her legs crushed, a task which may succeed or fail depending on players' ability.

[6] In the Japanese version, past Lucca has letters written in the third person and initially wants to be a "normal bride" and thus dislikes science.

In the English version, the bride aspect is dropped and replaced with an annoyance that her father is too busy with science to spend time with her.

[8] In the English Super Nintendo version, the suggestion that Ayla was attracted to Lucca was removed and replaced with showing respect to her for her power.

[8] She is the friend of protagonist Crono, both of whom live in the year 1000 AD, in Guardia Kingdon, in the capital city of Truce, where a Millennial Fair is being held.

Marle winds up getting sent back in time to 600 AD while attempting to use the teleporter due to an interaction between her pendant and the machine, resulting in Crono going after her with Lucca's help.

The three are chased and escape through time into 2300 AD, where they discover a post-apocalypse and a robot named Robo who she repairs and accept into the team.

After aiding in the growth of a forest, Lucca discovers a red time portal that sends her back to the day where her mother lost the use of her legs due to an accident with a machine of her father's.

The game's antagonist, Lynx, killed her and burns down the orphanage in pursuit of a powerful artifact called the Frozen Flame.

[14] The scene depicting Lucca going back in time to when her mother became handicapped from a machinery accident has been covered by journalists and in academic studies.

[15] Chad Concelmo of Destructoid suggested that one of the reasons it makes such an impact is that players can fail to save Lucca's mother.